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The AAPG/Datapages Combined Publications Database

Showing 34,497 Results. Searched 200,685 documents.

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Abstract: Permeability Calculations in Unconsolidated Sands; #90224 (2015)

Saeed Taheri, Shahin Ghomeshi, Apostolos Kantzas

Search and Discovery.com

...) and later modified by Carman (1937, 1956). The resulting equation is largely known as the Kozeny-Carman (KC) equation. This equation has taken several forms...

2015

Downhole Microseismic Mapping of More Than 400 Fracturing Stages on a Multiwell Pad at the Hydraulic Fracturing Test Site (HFTS): Discussion of Operational Challenges and Analytic Results

Neil A. Stegent, Cody Candler

Unconventional Resources Technology Conference (URTEC)

...% of the planned fracture stages. Downhole tiltmeters were also used to validate upward fracture height growth. Multiple geophone arrays, both vertical...

2018

Abstract: LSPSM for Pre-and Poststack Time Lapse Studies; #90187 (2014)

Abdolnaser Yousefzadeh and John C. Bancroft

Search and Discovery.com

... migration artifacts for the same model. Dead receivers in permanently planted geophone surveys will also cause some artifacts in the Kirchhoff migration...

2014

Application of New Type Curves Using Fractal Concept for Analyzing the Interference Test Data in Dieng Geothermal Reservoir

Doddy Abdassah, I. Nengah Suabdi, Leksono Mucharam, R. Sumantri

Indonesian Petroleum Association

... as: Equation (5) specifies the steady state pressure drop at the sandface due to the skin effect. Applying Laplace transformation to Equations (1)-(6...

1995

Roma Development Drilling „ Evolution of Well Design and Drilling Performance

Andrew Sellars, Thivanka Dedigama, Mohammad Zaman

Australian Petroleum Production & Exploration Association (APPEA) Journal

... Engineering and Production Operations have been critical in arriving at a fit-for-purpose design. Effect of the industry downturn: The industry downturn spanning...

2019

Waterflooding: Part 10. Reservoir Engineering Methods

A. M. Sam Sarem

AAPG Special Volumes

... or areal sweep efficiency (EP). [EQUATION] where ER = overall recovery (fraction of initial oil in place recovered) ED = displacement efficiency...

1992

Comparison of Petrophysical Characteristics of a Shaly Sand Reservoir Using Shale Volume and Double Layer Models

Fachmy Muhammad Irhamsyah, Andreas Franzona Pangaribuan, Sigit Dermawan, Ismail Halim, Ildrem Syafri, Nanda Natasia, Ika Merdekawati, Adhilaksana, Bagus Wanmasri

Indonesian Petroleum Association

... and porosity as calculated from well logs. While Archie’s equation describes the electrical conductivity behaviour of shale-free rocks. Indonesia, Waxman...

2017

The plug drum effect, or why your microseismic events may not be where you think they are

Guillaume Bergery, Zhishuai Zhang, Jing Du, D. Diller, T. Shuck, B. Fish

Unconventional Resources Technology Conference (URTEC)

...The plug drum effect, or why your microseismic events may not be where you think they are Guillaume Bergery, Zhishuai Zhang, Jing Du, D. Diller...

2017

Comments on Calculation of Diffusion Coefficients from Hydrocarbon Concentration Profiles in Rocks: GEOLOGIC NOTE

Michele Moisio Thomas

AAPG Bulletin

..., EQUATION (1) where c = concentration of hydrocarbon, D = diffusion coefficient, t = time, and x = depth. This equation is appropriate only for systems...

1989

Effective Use of High Density VSP Measurements to Predict Pore Pressure and Estimate Mud Weight Ahead of Drilling in the Mahakam Delta, Indonesia

Mohammed Badri, Stephane Gazet, Gregoire de Tonnac

Indonesian Petroleum Association

... inversion method, time to depth conversion can be achieved using Gardner’s equation (Gardner et al, 1974) where density is expressed in terms of velocity...

2005

Petrophysical Relationship to Predict Synthetic Porosity Log; #41124 (2013)

Thariq Guntoro, Intan Putri, and Ayi Syaeful Bahri

Search and Discovery.com

... in that depth, indicating the existence of gas. The Faust’s equation cannot work for gas effect (Crain, 2012). Because of that, the error value is going...

2013

PYRITIZED CRYOGENIAN CYANOBACTERIAL FOSSILS FROM ARCTIC ALASKA

KELSEY R. MOORE, TANJA BOSAK, FRANCIS MACDONALD, KIMBERLY DU, SHARON A. NEWMAN, DANIEL J. G. LAHR, SARA B. PRUSS

PALAIOS

...: The Cryogenian was a time of climatic extremes, with two extended and severe global glaciations bracketing hothouse conditions. The effect...

2017

Visualizing the Internal Physical Characteristics of Carbonate Sediments with Magnetic Resonance Imaging and Petrography

Murray K. Gingras, Bryce MacMillan, Bruce J. Balcom

CSPG Bulletin

... interpretation. Equation 1 relates the signal intensity at any point in a SPRITE image to the proton (water) density po, the experimental parameters tp...

2002

Abstract: EMAT (Electromagnetic-Acoustic Transducers) Technology, a Solution for Cement Evaluation in Difficult Logging Environments; #91204 (2023)

Ramdane Bouchou, Evi Yanty

Search and Discovery.com

... MEOS GEO 2023 EMAT Technology: Theory and Methodology EMAT transducers consist of a transmitter coil, a magnet and a conductive casing. The coil...

2023

Amplitude Recovery of Digitally Recorded Data

Roy O. Lindseth

Pacific Section of AAPG

... the unit impulse response of the seismic recording system. The effect of the convolution process is completely linear. Each reflection coefficient...

1972

Compaction Curves

Brewster Baldwin , Crispin O. Butler

AAPG Bulletin

... shale, and perhaps limestone, has a solidity (S; the complement of porosity) within 5% of the Baldwin-Butler power-law equation, burial depth (in km...

1985

The effects of seismic anisotropy on mining seismology

Andrew King

Petroleum Exploration Society of Australia (PESA)

... to enable the two S phases to be picked individually. Example Microseismic Data Set An example seismic event arrival at a triaxial geophone is shown...

2019

Abstract: Advantages and Disadvantages of Array Depth Placement and Longer Toolstring Apertures; #90187 (2014)

N. Verkhovtseva and J. Shaffner

Search and Discovery.com

.... Introduction Early efforts to monitor hydraulic fractures with downhole geophone receivers employed single receivers in nearby wellbores...

2014

Q-compensation imaging of anisotropic viscous quasi-acoustic media along wavefield propagation path

Bohan Zhang, Huazhong Wang

International Meeting for Applied Geoscience and Energy (IMAGE)

... absorption attenuation media based on two-way wave equation, however, the mathematical derivation and numerical implementation of two-way wave equation...

2022

An Investigation of the Problem of the Estimation of Gas Reserves

J. Versluys

AAPG Bulletin

..., the porosity of the rock, the effect of encroaching water and oil, and the quantity of gas remaining when the limit of commercial production...

1928

Application of Transport Equations to Groundwater Systems

John D. Bredehoeft , George F. Pinder

AAPG Special Volumes

... to consider simplified subsets of equations for the general problem. The equation of motion for single-component groundwater flow, which describes...

1972

Factors Influencing Productivity: Chapter 4

Sada D. Joshi

AAPG Special Volumes

... analytical solutions are the simplest form of a horizontal well solution. The equation is essentially a modified Darcy's equation to calculate...

1991

Application of Petroleum Exploration/Development Methods to an Environmental Remediation Project, Tinker Air Force Base, Oklahoma

John C. Osweiler, Daniel P. Hunt, David E. Mizell

Tulsa Geological Society

... an apparent resistivity is derived (Dyck, 1991). It employs a large source coil placed on the surface and a receiver coil that moves up or down...

1996

Technological Revolution in Petroleum Exploration: Chapter 11

Edgar Wesley Owen, C. V. Millikan

AAPG Special Volumes

... flocculate drilled clays with little effect on the bentonitic solids, except for some increase in yield or gel strength. They substantially reduce...

1975

Mathematical Model of Electromagnetic Proppant Effects on Heavy Oil Production Rate

Ardina Dwi Listiani, Sudjati Rachmat

Indonesian Petroleum Association

... of iron sand deposits with an Fe content from 38 - 59% (Rusianto et al., 2012). DIFFERENTIAL TRANSFER EQUATION OF temperature at depth is assumed...

2015

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